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(No Model.)

1 Sheet-Sheet 1. E. B. WARREN.

OAR BRAKE.

- U WITNESS INVENTOR a I 9 BY awn/w ATTORNEYS.

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3 SheetsSheet 2.

(No Model.) 7 Y E. B. WARREN. GAR BRAKE. No. 369,897. Patented Sept. 13,18817.

INVBNTOR a 63% ATTORNEYS.

WITNESSES :3

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(No Model.) 3 Sheets- Sheet 3. E! B. WARREN.

OAR BRAKE.

No. 369,897. Patented Sept. 13, 1887.

WITNESSE 5 5 INVENTOR:

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N. PETERS, Pfmm-Lilhugnphcr, Washington, m;

Units STATES PATENT FFlCE.

ED\VARD BROOK VVARBEN, OF PLANKINTON, DAKOTA TERRITORY.

CAR-BRAKE.

.E-EPECIFICA'I'ION forming part of Letters Patent No. 369,897, datedSeptember 13, 1887.

Application filed April 16, 1887. Serial No. 235,075. (No modeLl T0 aZZwhom, it may concern.-

Be it known that I, EDWARD BROOK WAR- REN, of Plankinton, in the countyof Aurora and Territory of Dakota, have invented a new and usefulImprovement. in Oar-Brakes, of which the following is a full, clear, andexact description.

My invention relates to railway appliances, and is an improvement inautomatic car-brakes. Its objects are to provide steam-railway cars witha brake controllable from the locomotivetender, which will brake uponall the cars of the train through a separable brake-rod passing from thetender to the last car, and be as eliicient when the train is movingbackward or upon curves and switches as when its course is forward or ina straight line, the setting and releasing of the brake-shoes beingautomatically conducted by the revolution of said brakerod.

The invention consists in certain novel featu res of construction andcombinations of parts of the carbrake, all as hereinafter described andclaimed.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar letters of reference indicatecorresponding parts in all the figures.

Figure 1 is a central longitudinal sectional view of a locomotive-tenderwith a portion of the mechanism of my improved brake applied thereto.Fig. 2 is a transverse sectional view of the same, a: a: in Fig. 1 beingthe line of section. Fig. 3 is a central longitudinal sectional view ofpart of a railway-car with the other portion of the mechanism of myimproved brake applied thereto. Fig. 4 is a plan View of the same, thebody of the car being removed; and Fig. 5 is a vertical sectional viewof the brake-gearing mechanism of the car,

taken on the line 3 y in Fig. 3.

Beneath the center of the tender A, above its axles (t a, extends anelongated rod, B, in two parts, I) b, connected together by aswiveljoint, I)", and said parts turn in bearings c c, which depend fromthe trucks of the tender. The outer extremity of the part b has asuitable stop, Z)", formed upon it, and between said stop and thebearing 0 is encircled by a cushion-spring, 0 The outer extremity of thepart b has suitably secured to it a head, 0,

' the tender is formed a worm, d, adapted to be engaged by a gear-wheel,d secured above it on the part I) of the rod B.

A lever, E, is pivoted ate to a lug, e, on the floor of the tender, towhich lever is journaled alink, 6 which passes downward through asuitable opening in said floor, and is connected at e to the part b ofsaid rod B. A pin, f, projects downward from the arm of said lever, andis embraced by a spring, f, seated in a cup or socket, J, in the floorof the tender, which spring acts normally to keep the arm of the leverin a raised position, the movements of said lever being guided by saidpin.

Said lever may be held down by a catch or any other suitable means, ifdesired.

To the link c is pivoted at g a bent lever, g, carrying a pawl, g",which passes down through the floor of the tender and is adapted toengage with a ratchet-wheel, g", on the part b of the rod B, and the armof said lever is connected to said link by a retracting-spring, h, whichnormally acts to hold the pawl g in the teeth of the ratchet-wheelgi Thearm of the lever E is also provided with a suitable foot-plate, as shownat the right of Fig. 1 of the drawings.

An elongated rod, B, in two parts, I) Z), connected by a swivel-joint, bextends beneath the center of the car F above its axles a a, and hassuitably secured to the outer extremities of its parts I) 1/ heads 0,having the same construction as the head 0 on the rod B, the tongues ofwhich heads also project a little beyond the mouths of the draw-head l).

The part b of the rod B is sustained by and turns in the extremity of aforked hanger, G, which projects outward and downward from the truck ofthe car, and also turns in a bearing, h, beneath said truck, and betweensaid hanger and the head 0 said part b is encircled IOO turns in abearing, h, beneath said truck, and in a biangular bearing, H, securedto the inner face of said truck, the portion of said bearing which restsagainst the truck being prolonged below the same and having a verticalslot,'h formed in it. A spur-wheel, j, having spurs upon only one-halfits periphery, is rigidly secured upon an axis, 70, which turns in theupper part of the bearing H, and is adapted to be engaged by agear-wheel, Z, rigidly secured beneath it on the part b of the rod B,and to said spur-wheel j is connected a short chain, j,- or said axisand spur-wheel may, if desired, be located below the part b of the rodB, as indicated by dotted lines in Fig. 5 of the drawings.

To the inner face of the truck, to which is secured the hanger G, issecured a U-shaped bearing, I, provided with proper bolt-openings. Aforked hanger, J, the arms of which project inward and downward andconverge to meet the sides of one extremity of a horizontal beam, K, andto which said arms are bolted, is pivoted to the bearingI upon ahingebolt, Z. Beneath the other extremity of said beam K is secured ahorizontal bar, m, which ranges in the slot ]L2 of the bearing H, andits extremity is threaded and provided with a suitable nut, or it mayhave a suitable stop formed upon it. The chain j, depending from thespur-wheel j, is connected to said bar, and the chain of an ordinarywheel-brake is carried down from the car-platform over a pulley on thecar-truck above the section b of the rod B and connected in any suitablemanner to a vertical rod, m, seated in said bar.

Upon the beam K is carried a fan-shaped gear-plate, L, constructed withwings a, suitably apertured to adapt said plate to be connected tothebrake-levers, and havinga curved slot, n, in its head'portion. A bar,0, bolted to the beam K, and through which pins 1) and q pass into saidbeam, holds said plate on the beam, said plate being adapted to turn onthe pin p, guided by the pin q, as it ranges the slot n. Said plate L isadapted to be geared with a worm, (1, formed on the axle a of the car.

Brake-levers R are pivoted upon a link, 1', attached to one of thebrake-bars, (see Fig. 4,) their short and long arms being respectivelyconnected by rods 8 s, pivotally attached thereto, to the opposite brakebar, and to chains t, leading to the wings of the gear-plate L, the rods8 being provided with retractingsprings a, which normally act to centerthe plate L upon its beam when not geared with the worm d.

The heads 0 and O are adapted to fit into each other as the cars andtender are coupled together, thus enabling the tender to be coupled toeither end of the car, and when so coupled a continuous brake-rod, B B,is established beneath the entire train. I prefer to construct each ofthe rods B and B" in two parts, and to connect said parts by aswiveljoint, as shown in Figs. 1, 3, and 4 of the drawings, in order toprevent possible fracture of the rods in turning sharp curves or inmaking quick switches. The slip-joint connection of the heads 0 C alsocontributes to the same end.

It will be understood that the brake-bars of the truck of the car, asshown at the left of Fig. 3, may have similar brake-levers connected tothem, as shown at the right of said figure, and attached by suitablerods or chains to the wings of the gear-plate, if desired.

The operation of my improved brake is as follows: By applying pressureto the foot-plate of the lever E the link 6 forces the part b of the rodB downward and engages its gearwheel 61 with the worm d on the axle a ofthe tender. As said axle revolves, the rod B is turned, the pawl gslipping over and engaging the teeth of the ratchet-wheel g andpreventing a reverse movement of said rod. As said rod revolves, itshead 0, which is interlocked with the head 0 of the rod B, causes saidrod B to also revolve. Its gear-Wheell takes into the teeth of thespur-wheel j and turns the same, and said spur-wheel j draws up itschain j, thus elevating the hinged beam K and gearing the plate L withthe worm d of the axle a of the car, the bar m ranging upward in theslot h of the bearing H and guiding the beam K as it rises. When saidplate L is in gear with said worm, the revolution of the axle a, bearingthe worm d, causes the plate L to. swing to the left or right, as shownby dotted lines in Fig. 4, according to the direction of the train. Itswings operate the chains and rods leading to the brake-levers, and saidlevers in their action draw the brake-bars and their shoes tightlyagainst the wheels and retard and stop their revolution. When the traincomes to a standstill, the .arm of the lever Eis released, its spring fforces it upward, and, the arm of the lever 9 being moved outward fromsaid lever, the gearwheel and ratchet-wheel on the rod B are releasedand said rod reverses its revolution. At the same time the gear-wheel onthe rod B turns back as said rod reverses its revolution, releases thetension on the chain j, the spurwheel j returns to its normalposition,andthe beam K, carrying the gear-plate L, falls to its originalposition, and the teeth of said gearplate are ungeared from the worm d.Simultaneously therewith the reaction of the brakeshoes and the actionof the springsu combineto restore the gear-plate L to the position shownin full lines in Fig. 4. In case the engagement of the spur-wheel j andthe gear-wheel lon the rod B does not at once or quickly enough raisethe beam K to gear the plate L and worm d, the wheel-brake on thecar-plat,- form (not shown) may be operated to raise said beam, therelease of its chain contributing to ungear said plate from said worm.

The plate L is adapted to swing either to the right or left upon the pin19, so that if the train be moving backward it will operate to IIO setthe brake-shoes against the wheels as efficiently as when the directionof the train is forward, and as well upon curves and switches as onstraight tracks. \Vhile the connection of the heads 0 O is firm enoughto insure the simultaneous revolution of the brake-rod sections B B, itis yet free enough so that, supplemented by the swivel-joint connectionsof the parts of said rod, curves and switches may be made by the trainwithout lessening the power of the brake-rod to any appreciable degreeand there is free vertical play between I the cars.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. In an automatic brake, the combination, with the brake-levers, of aswinging gearplate connected to said brakelevers, a gearwheel on theaxle, and means for throwing the gear-plate in and out of gear with thegear-wheel on the axle, substantially as herein shown and described.

2. In an'automatic brake, the combination, with a gear-wheel on theaxle, a swinging gear-plate, and brake-levers connected to said swinginggear-plate, of a horizontal brakerod, means for revolving said rod, andintermediate mechanism'for throwing the swinging gear-plate into gearwith gear-wheel on the axle by the revolution of the said rod,substantially as herein shown and described.

3. In an automatic brakadhorizontal brakerod centrally located beneaththe locomotivetender, formed in two parts, having a swiveljointconnection,and turning in suitable bearings above the axles of thetender, a head on the outer extremity of one part of said rod adapted tointerlock with corresponding heads on a similar brake-rod beneath thecar, agearwheel on said rod fitted to be engaged with a worm on one ofthe axles ofthe tender, a ratchetwheel adjacent to said gear wheel, andmeans for setting said wheel upon said worm and for engaging saidratchetwheelto prevent said rod from reversing its revolution, allconstructed as described and shown, and for the purpose set forth.

4'. In an automatic brake,a horizontal brakerod turning in bearingsbeneath the center of the tender above its axles, said rod formed of twoparts, swivel -j ointed together, a pressurelever mounted upon thetender, a link journaled to said lever and connected to said rod, ageanwheel and a ratchet-wheel on said'rod at either side of saidlink-connection, a bent lever carrying a pawl pivoted to said link,and ahead on the outer extremity of one part of said rod fitted to interlockwith corresponding heads on a brake-rod beneath the car, all constructedsubstantially as shown and described, and for the purpose set forth.

5. In an automatic brake, the combination, with a locomotive -tenderhaving a worm formed upon one of its axles and a pressurelever mountedupon its floor, a link connecting said lever and a horizontal brake-rod,and a bent lever carrying a pawl pivoted to said link, of a horizontalbrake-rod in two parts, swivel-j ointed together, centrally located inbearings beneath the tender above its axles, and provided with a gear-wheel adapted to be engaged with said worm, and a ratchet-wheel adapted tobe engaged by said pawl, and having on the outer extremity of one of itsparts a head fitted to interlock with corresponding heads on a similarbrake-rod beneath the car, substantially as and for the purposedescribed and shown.

6. In an automaticbrake,ahorizontal brakerod centrally located beneaththe car,formed in two parts, having a swivel-joint connection, andturning in suitable bearings above the axles of the car, a head uponeach of its outer extremities adapted to interlock with a correspondinghead on a similar brake-rod beneath the tender, and a gear-wheel on saidrod engaged with a spunwheel located parallel with said rod in itsvertical bearing, said spurwheel having a suspension-chain fixed to itsaxis, all constructed substantially as shown and described.

7. In an automatic brake, a horizontal beam suspended between the trucksof the car upon the extremities ofthe arms of a forked hanger hinged toone of said trucks and upon the extremity of a chain depending from theaxis ofa spur-wheel located in a vertical bearing fixed to the side ofthe opposite truck,and a swing ing gear-plate pivotedupon saidbeam,adapted to be engaged with a worm on the axle of the car, andconnected by suitable rods and chains to the brake-levers, allconstructed substantially as shown and described.

8. In an automatic brake, the combination, with a railway-car havingsuitable bearings for a horizontal brake-rod fixed beneath and to thesides of its trucks, one of said bearings being vertical and biangularand supporting the axis of a spur-wheel carrying a suspension-chain, ofa horizontal brake-rod formed in two parts, having a'swivel-jointconnection, and provided on its outer extremities with heads fitted tointerlock with the head of a similar brake-rod beneath the tender, saidrod turning in said bearings and having fitted upon it a gear-wheelwhich engages with said spur-wheel, and a gear-plate pivotally connectedto a horizontal beam suspended between thetrucks of the car upon saidchain, and the ends of a forked hanger hinged to the truck opposite saidsuspension-chain and being fitted to be engaged with a worm on the axleof the car, and said gear-plate being suitably connected to thebrake-levers of the car, all constructed substantially as shown anddescribed, for the purpose set forth.

9. In an automatic brake, a horizontal brakerod centrally locatedbeneath the locomotive tender, formed in two parts, swivel-jointed toget-her,andturning in bearings above the axles of the tender, aninterlocking head at one end ITO of said rod, and a gearwheel andratchet-wheel near its other end, ahorizontal brake-rod centrallylocated beneath the car, formed in two parts, swivel-jointed together,and turning in bearings above the axles of the car, an interlocking headat each end of said rod, a gear wheel on said rod engaged with aspur-wheel turning on its axis parallel with said rod, a gear platepivotally connected to a beam suspended between the trucks of the carupon a forked hanger hinged to one of said trucks and upon a chaindepending from the axis of said spur-wheel, said gear-plate being fittedto engage with a worm on an axle of said car by the turning of said rodand being suitably con nected to the brake-levers of the car, a pressure-lever mounted upon the tender, connected by a link to the brake-rodbeneath the same, and a pawl pivoted to said link and ranging saidratchet-wheel, the gear-wheel on said rod being fitted to be engagedwith a worm on an axle of the tender by the depression of said lever,all constructed, arranged, and adapted to operate substantially as setforth.

10. In an automatic brake, the rods B B, constructed in two parts, I)I), connected by a swivel-joint and provided with the heads 0 G, thegear-wheels d Z, and ratchet-wheel g in combination wit-h thepressure-lever E, link e and bent lever and pawl g 9 substantially asand for the purpose shown and described.

11. In an automatic brake, the rods B B, constructed in two parts, I)12, connected by a swivel-joint and provided with the heads 0 G, thespurwheel j, carrying the chain j, the gear-wheels (Z Z, ratchet-wheel gpressure-lever E, link 6 and bent lever and pawl g 9 in combination withthe beam K, gear-plate L, hangers J G G, and the worms (1 (Z on theaxles of the tender and car, substantially as and for the purpose shownand described.

12. In an automatic brake, the combination of the rod B, constructed intwo parts, b b, swivel-jointed together and provided with the head 0,gear-wheel d and ratchet-wheel g", and the pressure-lever E, link e",and bent le- Ver and pawl g g ,with aworm, d, on the axle of a tender,A, substantially as shown and described.

13. In an automatic brake, the combination of the bearing H,spur-wheelj, chainj, bar 0, beam K, gear-plate L, hanger J, and bearingI, with a worm, d, on the axle of the car, the rod B, and gear-wheel Z,and the brake-levers R, connected by suitable rods and chains to thewings of said gear-plate, substantially as shown and described, for thepurpose set forth.

14. In an automatic brake, the gear'plate L, constructed with asemicircular toothed head, wings at its rear, and a slot following thecurve of its head, in which slot ranges a pin or stud, said gear-platebeing pivotally connected to a beam suspended between the car-trucks andconnected by its wings to chains and pull-rods which actuate doublelevers suitably connected to the brake-bars, substantially as describedand shown.

' 15; In an automatic brake, the combina tion,with aworm formed on anaxle of the car,

of the gear-plate L, having a semicircular toothed head, wings at itsrear, a slot following the curve of said head, in which ranges a pin orstud, said gear-plate being pivotally connected to a beam suspendedbetween the car-trucks and connected by its wings to chains andpull-rods attached to the brakelevers, substantially as described andshown.

16. In an automatic brake, the combination, with a locomotive-tender, A,having a worm, d, formed upon one of its axles, a, of the rod B, in twoparts, I) I), having a swivel-joint connection, said rod being providedwith ahead, 0, gear-wheel (Z and ratchet-wheel g and a pressure-lever,E, mounted on the tender, a link, e connecting said lever and rod, and abent lever, g, carrying a pawl, 9 pivoted to said link, substantially asshown and described.

17. In an automatic brake, the combination, with a railway-car, F,having a worm, oZ, formed upon one of its axles, a, of the rod B, in twoparts, b 12, having a swivel-joint connection, said rod. being providedat each extremity with a head, 0, and with a gear-wheel, Z, near theaxle a, a spur-wheel, j, turning parallel with said gear-wheel Z andcarrying a chain, j, and the beam K, carrying the gearplate L, connectedby suitable rods and chains to the double levers R, which actuate thebrake -bars, substantially as described and shown.

18. In an automatic brake, the combination of the rod B, in two parts,swivel-jointed together beneath a locomotive-tender and provided withthe head 0, gear-wheel (P, and ratchet-wheel g, a worm, d, on one of theaxles of the tender, a pressure-lever, E, mounted on the tender, a link,6", journaled to said lever, a bent lever, g, pivoted to said link andcarrying a pawl, g, with the rod B, in two parts, swivel-jointedtogether beneath a railway-car and provided with the heads 0, andgearwheel Z, the slotted bearing H, spur-wheelj, chain j, hangers G G J,beam K, and gearplate L, suitably connected to the brake-levers It,substantially as and for the purpose described and shown.

19. In a system of automatic brake mechanism, a horizontal brake-rod intwo parts, swivel-jointed together, centrally located beneath thetender,and turning in bearings above its axles and beneath its trucks,provided with an interlocking head at its rear extremity, aratchet-wheel near its forward extremity, and a gear-wheel above a wormon one of the axles of the tender, a pressure-lever pivoted to the floorof the tender and linked to said rod, a bent lever carrying apawl,-pivoted to said link, and attached by a reacting spring to the armof said lever, substantially as shown and described.

20. In a system ofautomatic brake mechanism, a horizontal brake-rod intwo parts, swivel-jointed together, centrally located beheath therailway-car, and turning above its axles and beneath its trucks,provided with an interlocking head at each of its outer extremities, andwith a gearwheel engaging with a spur-wheel turning on its axis parallelwith said rod, a beam suspended between the cartrucks by a forked hangerhinged to one of said trucks and by a chain depending from the axis ofthe spur-wheel, said beam carrying a winged pivotal gear-plate, thewings of said plate being connected by rods and chains with the longarms of brake-levers suspended between the brake-bars, all constructedand arranged to operate substantially as shown and described.

21. An improvement in automatic brakes, consisting of horizontal rods,each in two parts, connected by a swivel-joint, one of said rods beingbeneath the tender and the other beneath the car, heads on said rodsfitted to interlock together, a gear-wheel on the rod beneath thetender, adapted to be engaged with a worm formed on one of the axles ofthe tender by the action of a pressure-lever mounted on the tender, alever depending from the tender, carrying a pawl which ranges a ratcheton said rod, a gear-wheel on the rod beneath the car, interlocked with aspur-wheel turning in a bearing beneath the car, a chain depending fromsaid spur-wheel, a beam suspended between the trucks of the car by saidchain and by aforked hanger hinged to one of said trucks, a gear-platepivoted upon said beam and having its wings suitably connected to thelong arms of brakelevers suspended between the brake-bars, saidgear-plate being adapted to be geared with a worm formed on one of theaxles of the car by the revolution of the combined brake-rod,substantially as set forth 22. The combination, with a worm on an axleof a locomotive-tender, of a rod extending beneath said tender, aworm-gear on said rod, and means, substantially as described, forbringing said worm and worm-gear into engagement, substantially as setforth.

23. The combination, with a worm mounted on an axle of a car, of aswinging beam, a segmental gear-plate pivoted on said beam,chainsextending from wings on said plate to the brake-levers, and means forswinging said beam to bring said segmental gear-plate into engagementwith said worm, substantially as set forth.

24. The combination, with aworm mounted on an axle of a car, a swingingbean], a gearplate pivoted on said beam and adapted to engage said worm,and connections from said plate to the brake-levers, of a revoluble rodand means, substantially as described, for swinging said beam by therevolution of said rod, substantially as set forth.

EDWARD BROOK WARREN.

Witnesses:

R. K. WATSON, JAMEs Rice,

